Patient Slider Device

ABSTRACT

A patient slider device configured to move a patient from a first bed surface to a second bed surface positioned adjacent thereto. The patient slider device includes a frame, a bed engagement assembly and a patient pulling assembly. The bed engagement assembly includes a bumper with the bumper being adjustable relative to the frame. The patient pulling assembly includes a winch assembly, preferably positioned proximate a lower end of the frame, and a sheet engaging clamp assembly. The sheet engaging clamp assembly includes a base member and a locking member structurally configured to clamp a sheet therebetween.

CROSS-REFERENCE TO RELATED APPLICATION

The present application claims priority from U.S. Pat. App. Ser. No.62/668,196, filed May 7, 2018, entitled “Patient Slider Device”, theentire specification of which is hereby incorporated by reference in itsentirety.

BACKGROUND OF THE DISCLOSURE 1. Field of the Disclosure

The disclosure relates in general to medical equipment, and moreparticularly, to a patient slider device which is structurallyconfigured to aid in the movement of a patient between adjacent beds bypulling a bed sheet that underlies the patient.

2. Background Art

The use of patient transfer devices is known in the art. Typically, andoften in a hospital setting, patients are transferred between twosurfaces, such as hospital beds or the like. The beds are positioned ina side by side orientation and the operator(s) stand on one side of thesecond bed opposite the patient that is lying on the first bed. Theoperator then reaches over the first bed and pulls the sheet underlyingthe patient, so that the sheet and the patient traverse from the firstbed surface to the second bed surface.

Understandably, such a movement may be difficult. First, the operator(s)needs to reach the sheet and be able to pull the sheet across the secondbed. Second, the operator(s) needs to have sufficient strength andcoordination to pull the sheet and the patient across the first bed andonto the second bed. Third, the operator(s) need to minimize discomfort,injury and/or disruption to the patient.

As the movement of the patient is fraught with potential for injury toboth the patient and the operator(s), a number of devices have beendeveloped to assist, automate, and/or manage the movement of a patientbetween adjacent bed surfaces.

SUMMARY OF THE DISCLOSURE

A patient slider device comprising a frame, a bed engagement assemblyand a patient pulling assembly. The frame has a base and an elongatedbody extending from the base. The elongated body has a lower end and anupper end. The bed engagement assembly is structurally configured toengage a bed, to, in turn, maintain the frame in an operable position.The patient pulling assembly includes a winch assembly and a sheetengaging clamp assembly. A winding strap extends between the winchassembly and the sheet clamp assembly and is movable relative to theframe by the winch assembly.

In some configurations, the winch assembly includes a drum and a motorpositioned within a housing. The housing is positioned proximate thelower end of the elongated body.

In some configurations, the winding strap exits the frame proximate theupper end thereof.

In some configurations, the winch assembly further includes a slacktake-up system within the elongated body of the frame.

In some configurations, the slack take-up system includes an idlerpulley and a spring coupled to the idler pulley and to the frame. Theidler pulley is configured to travel between the lower end and the upperend of the elongated body of the frame.

In some configurations, the spring comprises one of a helical spring anda constant force spring.

In some configurations, a bed engagement assembly further includes abumper and an adjustment mechanism. The adjustment mechanism isstructurally configured to adjust the position of the bumper between thelower end and the upper end of the frame.

In some configurations, the bumper is slidably movable along the framebetween the lower end and the upper end of the frame.

In some configurations, the adjustment mechanism includes a first sidevertical adjustment, a second side vertical adjustment and a supportmember. The first side vertical adjustment has a first interfacingcoupling coupled to the frame and a first mating coupling slidablymovable along the first interfacing coupling. The second side verticaladjustment having a second interfacing coupling coupled to the frame anda second mating coupling slidably movable along the second interfacingcoupling. The support member has a first side arm coupled to the bumperand to the first mating coupling, and a second side arm coupled to thebumper and the second mating coupling.

In some configurations, the frame has a first side and a second sideopposite the first side, and with a bed side extending therebetween. Thefirst side vertical adjustment extending along the first side betweenthe lower end and the upper end of the frame. The second side verticaladjustment extending along the second side between the lower end and theupper end of the frame, with the bumper extending therebetween andacross the bed side, while being spaced apart from the bed side.

In some configurations, the adjustment mechanism further includes alocking assembly structurally configured to lock the position of thebumper relative to the frame between the lower end and the upper end ofthe frame.

In some configurations, the patient pulling assembly further includes awinch control system structurally configured to retract the windingstrap toward the frame.

In some configurations, the winch control system includes a remotemovable away from the frame.

In some configurations, the patient slider device further includes asheet engaging clamp assembly that has a base member and a lockingmember. The locking member is coupled to the winding strap and to thebase member. A sheet is releasably clampable between the base member andthe locking member.

In some configurations, the base member comprises an elongated rodhaving a first side axial valley at one end thereof, and a second sideaxial valley at the other end thereof. The locking member comprises atransverse strap having a first adjustable strap loop and a secondadjustable strap loop. The first adjustable strap loop is positionableover the first side axial valley to clamp a sheet therebetween. Thesecond adjustable strap loop is positionable over the second side axialvalley to clamp the sheet therebetween.

In some configurations, the locking member is one of fixedly coupled tothe winding strap and releasably coupled to the winding strap.

In some configurations, the first side axial valley and the second sideaxial valley are each formed by a pair of spheres spaced apart from eachother.

In another aspect of the disclosure, the disclosure is directed to asheet engaging clamp assembly having a base member and a locking member.The base member has an elongated rod having a first side axial valley atone end thereof, and a second side axial valley at the other endthereof. The locking member has a transverse strap having a firstadjustable strap loop and a second adjustable strap loop. The firstadjustable strap loop is positionable over the first side axial valleyto clamp a sheet therebetween, and the second adjustable strap loop ispositionable over the second side axial valley to clamp the sheettherebetween.

In another aspect of the disclosure, the disclosure is directed to amethod of sliding a patient from a first surface to a second surfaceadjacent to the first surface, with a patient positioned on a sheetcovering the first surface, using a patient slider device and comprisingthe steps of: providing a sheet engaging clamp; clamping a sheet uponwhich a patient is positioned to the sheet engaging clamp; positioningthe patient slider device adjacent the second surface opposite from thefirst surface; extending the winding strap from the frame; coupling thesheet engaging clamp to the winding strap; retracting the winding strapwith the winch assembly; pulling the sheet toward the frame, to, inturn, slide a patient to the second surface.

In some configurations, the patient slider device further includes awinch control system that comprises a remote that controls the winchassembly, the method further comprising the step of moving the remoteaway from the frame of the patient slider device prior to the step ofretracting the winding strap with the winch assembly.

BRIEF DESCRIPTION OF THE DRAWINGS

The disclosure will now be described with reference to the drawingswherein:

FIG. 1 of the drawings is a front, side perspective view of the patientslider device of the present disclosure;

FIG. 2 of the drawings is a side elevational view of the patient sliderdevice of the present disclosure;

FIG. 3 of the drawings is a back, side perspective view of the patientslider device of the present disclosure;

FIG. 4 of the drawings is a back, side perspective view of the patientslider device of the present disclosure;

FIG. 5 of the drawings is a bottom plan view of the patient sliderdevice of the present disclosure;

FIG. 6 of the drawings is a cross-sectional view of the patient sliderdevice of the present disclosure, showing, in particular, the internalconfiguration of the frame, and the configuration of the winch assemblyof the patient pulling assembly, taken generally about lines 6-6 of FIG.5;

FIG. 7 of the drawings is a partial perspective view of the patientslider device of the present disclosure, showing, in particular, the bedengagement assembly;

FIG. 8 of the drawings is a partial perspective view of the patientslider device of the present disclosure, showing, in particular, the begengagement assembly;

FIG. 9 of the drawings is a top plan view of the sheet engaging clampassembly;

FIG. 9b of the drawings is a partial side view of the locking member,showing, in particular, the second adjustable strap loop;

FIG. 10 of the drawings is a side elevational view of the base member ofthe sheet engaging clamp assembly;

FIG. 11 of the drawings is a top plan view of another configuration ofthe sheet engaging clamp assembly;

FIG. 12 of the drawings is a cross-sectional view of the configurationof the sheet engaging clamp assembly of FIG. 11 taken generally aboutlines 12-12 of FIG. 11;

FIG. 13 of the drawings is a schematic representation of the patientslider device of the present disclosure, showing, in particular, theoperation thereof;

FIG. 14 of the drawings is a cross-sectional view of the configurationof the patient slider device of the present disclosure;

FIG. 15 of the drawings is a perspective view of the configuration ofthe patient slider device of FIG. 14;

FIG. 16 of the drawings is a partial cross-sectional view of aconfiguration of the patient slider device showing the wheel assemblythereof; and

FIG. 17 of the drawings is a partial cross-sectional view of theconfiguration of the patient slider device of FIG. 16.

DETAILED DESCRIPTION OF THE DISCLOSURE

While this disclosure is susceptible of embodiment in many differentforms, there is shown in the drawings and described herein in detail aspecific embodiment(s) with the understanding that the presentdisclosure is to be considered as an exemplification and is not intendedto be limited to the embodiment(s) illustrated.

It will be understood that like or analogous elements and/or components,referred to herein, may be identified throughout the drawings by likereference characters. In addition, it will be understood that thedrawings are merely schematic representations of the invention, and someof the components may have been distorted from actual scale for purposesof pictorial clarity.

Referring now to the drawings and in particular to FIGS. 1 through 4,the patient slider device is shown generally at 10. The patient sliderdevice, as will be understood, is typically utilized in a hospital ormedical center to transfer a patient from one hospital bed to anotherhospital bed. In such an environment, it is desirable to have such aprocedure accomplished by a single practitioner or caregiver (i.e.,operator). It will be understood that the patient slider device isconfigured for use in association with a number of different types andconfigurations of beds and other surfaces (i.e., hospital beds, surgicalbeds and surfaces, adjustable beds, testing equipment, stretchers, amongothers), and with patients of different sizes and with differentailments. The device as described herein is not limited to use in anyparticular environment, or with any particular types of patientsurfaces, and the reference to a hospital and/or medical facility, aswell as to hospital beds is solely exemplary.

With reference to FIGS. 1 through 4, one configuration of the patientslider device 10 comprises frame 12, bed engagement assembly 14, andpatient pulling assembly 16. The frame 12 includes base 20, elongatedbody 22 and grasping handle assembly 24. Generally, the frame is sizedso that the base can support the device, and maintain the device in anupright configuration, with the elongated body extending above the levelof the patient surface of the hospital bed. In the configuration shown,the frame 12 has a height that is between 40 inches and 60 inches, whileother dimensions are contemplated.

With additional reference to FIGS. 2-5, the base 20 extends between rearend 30 and front end 31. In the configuration shown, the base is asubstantially rectangular member having a length that is greater thanthe width, while other configurations are contemplated. Ground supports32 extend from the base to interface with the ground surface. Inparticular, and with further reference to FIG. 5, the ground supportsinclude foot member 40, first side leg 42 and second side leg 44. Thefoot member 40 comprises a transverse member having an engagementsurface. The first side leg extends to one side of the base with thesecond side leg extending on the opposite side of the base spaced apartfrom the foot member. In the configuration shown, the first and secondside legs are spaced apart from the rear end of the base as well, whileremaining closer to the rear end than to the front end.

The wheel assembly 34 comprises a transverse roller 36 that extendsoutwardly from the rear end of the base and rotates about axle 38. Itwill be understood that the first and second side legs are spaced apartfrom the rear end, and the transverse roller to facilitate for tiltingof the frame onto the wheel assembly 34. In the configuration shown, theground supports extend from the base beyond a lower surface of thetransverse roller so that when the patient slider device is in anoperable configuration on a floor or other surface, the device rests onthe first and second side legs with the transverse roller spaced apartfrom the floor or other surface.

It will be understood that in other configurations, both the groundsupport and the wheel assembly may have another configuration. Forexample, the ground supports may comprise extendable members that areactuated or otherwise moved to raise the device off the wheels, and tosupport the same. For example, in the configuration of FIGS. 16 and 17,the wheel assembly 34 may include a front wheel assembly 336. The frontwheel assembly 336 includes mounting subframe 340, translating linkage342, wheel members 344 and control lever 346. The mounting subframe 340is coupled to other portions of the frame 12, and configured to bemovable relative thereto through the translating linkage 342 (whichincludes, in the configuration shown, four separate linkages coupled atone end to the mounting subframe and at another end to the base orelongated body. The wheel members 344 comprise swivel casters in theconfiguration shown, arranged in a spaced apart configuration. Thecontrol lever 346 is rotatably coupled to the base or elongated body andincludes an articulating cam 347 at one end thereof and a foot actuator349 at the other end thereof. As the control lever 346 is actuated bythe foot actuator 349 so as to rotate in a first or second direction,the articulating cam 347 outwardly pushes the mounting subframe to drivethe wheel members into the ground (and to, in turn, lift the structureaway from the ground), or, allows the wheels to collapse and retractthereby allowing the foot member to contact the ground, and to have thefoot member support the device. It will be understood that, in use, as apatient is being transferred, the weight of the unit and the forces aredirected in such a manner that the foot member is directed into theground.

In other configurations, a wheel assembly may be omitted, or thetransverse roller may be replaced with a plurality of separate wheels(such as is shown in FIGS. 14 and 15, which, for example, and not to bedeemed limiting, disclose swiveling casters), or a combination ofrollers and wheels. In still other configurations, the device may be ofa weight that allows for carrying, or may be configured for coupling toa hospital bed or the like so that moving of the device is accomplishedthrough movement of a hospital bed or the like. In still otherconfigurations, the device may be coupled to another structure whichprovides for the moving from one location to another, and the deviceitself may lack any motive structures.

With continuing reference to FIGS. 1 through 4, along with FIG. 6,elongated body 22 extends from the base 20 in a generally upwarddirection. In the configuration shown, the elongated body extendsgenerally vertically emanating near or at the rear end of the base. Theelongated body 22 extends from lower end 50 to upper end 51, and isdefined by a bed side 52, an operator side 53, a first side 55, and asecond side 56. The different sides cooperatively define an internalchannel 58 (through which the winding strap extends between the sheetengaging clamp assembly 150 (FIG. 9) and the winch 130 and typicallyexits the frame proximate the upper end and generally above the bedengagement bumper). In the configuration shown, the elongated body has awidth that is greater than its depth, with the bed side being oblique tothe operator side, while the first side and the second side aresubstantially parallel to each other. In the configuration shown,further, the upper end has an upper rearward extension 46, which, inpart defines a control panel, and which has provisions for handle 57which provides manipulation of the device and grasping thereof whilerolling. Of course, variations in the configuration are contemplated.

It is contemplated that the elongated body may be formed cooperativelywith the base so that components may extend and form portions of each.In some configurations, the elongated body is cooperatively formed withthe housing 138 of the winch assembly 130. Additionally, in someconfigurations, the base and the elongated body may comprise a framestructure of beams and cross supports, with panels enclosing or coveringthe same. While it is contemplated that much of the structure is formedfrom metal components, polymer based structures as well as compositesare contemplated for use.

The grasping handle assembly 24 is shown in FIGS. 2, 3 and 4 ascomprising first side handle 60 and second side handle 65. The firstside handle 60 extends from the first side 55 of the elongated bodyproximate the upper end thereof, with the second side handle 65extending from the second side of the elongated body, again, proximatethe upper end thereof. In the configuration shown, the handles aremirror images of each other. The first side handle 60 includes aproximal end 61 that is at the interface with the elongated body and adistal end 62 which is spaced apart therefrom, so that the first sidehandle defines a grasping handle that has a partial U-shape that extendsoutwardly and the upwardly. An elastomeric or grippable structure may beplaced over a grip portion 64, such as a neoprene, or a sleeve, to aidwith gripping and comfort. The second side handle, being a substantialmirror image of the first side handle includes proximal end 66, distalend 67 and grip portion 69.

It is contemplated that the grasping handle may emanate from otherportions of the elongated body. It is further contemplated that thegrasping handles may be adjustable vertically or horizontally, or bothrelative to the elongated body, as opposed to being fixed in theconfiguration shown. Such adjustability may aid in instances where anoperator is taller or shorter, or wherein other obstructions are presentin the operative environment.

The bed engagement assembly 14 is shown generally in FIGS. 1 through 4,and in greater detail in FIGS. 7 and 8 as comprising bumper 70, supportmember 72 and adjustment mechanism 74. The bumper 70 includes outwardside 77 and back side 78. The bumper includes a resilient pad or thelike that extends over the outward side thereof. Such a pad precludesdamage to the bed against which the bumper is pressed when the device isin operation. In the configuration shown, the bumper is substantiallyplanar with a width that is greater than the height thereof, with thebumper having a substantially rectangular configuration.

The support members 72 extend from the bumper 77 to the frame 12 andmaintain the proper spacing therebetween. In the configuration shown,the support members comprise a first side arm 80, a second side arm 82and a cross member 84. The first side arm and the second side arm extendfrom a distal end 86, 88, respectively on opposing sides of the bumperto a proximal end 85, 87 that overlies a respective one of the firstside and the second side of the elongated body, spaced between the upperand lower end thereof. The cross member is generally substantiallyperpendicular to the first side arm and second side arm and extendstherebetween. The cross member is substantially parallel to the bumperand spaced apart from the bumper so as to provide rigidity to the firstand second side arms.

It will be understood that a number of other configurations for thesupport members are contemplated, such as a centrally located arm thatextends to a bumper, as well as a bumper that is coupled to otherstructures beyond the sides of the elongated body.

The adjustment mechanism 74 includes first side vertical adjustment 90,second side vertical adjustment 92 and locking assembly 94. The firstside vertical adjustment 90 includes first interfacing coupling which ismounted on the first side of the frame, and first mating coupling 103which is mounted at the proximal end of the first side arm 80. Thesecond side vertical adjustment 92 includes second interfacing coupling105 positioned on the second side of the elongated body and secondmating coupling 107 positioned on the proximal end of the second sidearm 82.

In the configuration shown, the first interfacing coupling 101 and thefirst mating coupling 103 slidably interface in the form of a rail and amating slot, such that the first mating coupling is slidablypositionable along the first interfacing coupling in a linear fashion.In the same manner, the second interfacing coupling 105 and the secondmating coupling 107 slidably interface in the form of a rail and amating slot, such that the second mating coupling is slidablypositionable along the second interfacing coupling in a linear fashion.In the configuration shown, the first and second side verticaladjustments allow for an up and down positioning of the support members,and in turn the bumper member relative to the frame 12, between a lowerposition and an upper position. It is contemplated that in otherconfigurations, the vertical adjustments allow for substantiallyvertical travel that is inclined so that the bumper also experiencessome horizontal travel component. For example, the vertical adjustmentmay be inclined at +/−10°-15° with respect to the vertical.

In other configurations, the first and second side vertical adjustmentmay comprise a slidable configuration that is different than the railand mating slot, while providing linear movement of the bumper. Forexample, in other configurations, a geared assembly is contemplated, or,an assembly that is aided by hydraulic cylinders and the like. In someconfigurations, the adjustment mechanism may be centrally locatedinstead of on opposite sides of the elongated body. In still otherconfigurations, the adjustment mechanism may lie at least partiallywithin the elongated body or other structures of the frame.

The locking assembly 94 is shown in FIG. 7 as comprising a threaded bolthaving handle 110 which is threadedly engageable with the threadedopening (not shown) of the first side mating coupling 103. When threadedinto the threaded opening, the threaded bolt engages the firstinterfacing coupling and precludes slidable movement between the firstinterfacing coupling and the first mating coupling to effectively lockthe same. In other configurations, a lever locking mechanism may beutilized, wherein locking is achieved through the rotation of a leverwhich, for example, rotates a cam to apply force on to the interfacingcoupling to preclude movement between the interfacing coupling and themating coupling. In other configurations, instead of an infinitelylockable configuration between the upper and lower end of travel of thebumper, a plurality of set locking openings may be configured to engagewith the threaded bolt or a pin such that the bumper can be locked atdiscrete positions along the range of travel.

With reference to FIG. 6 and FIGS. 9 and 9 b, the patient pullingassembly 16 comprises winch assembly 130, winding strap 140 and sheetengaging clamp assembly 150. The winch assembly 130 comprises drum 132,motor 134 having transmission 136, and winch control system 137 (FIG.3). The drum, transmission and motor of the winch assembly 130 aremaintained within the housing 138. Generally, the motor is powered by ACcurrent that is obtained through a power cord that extends out of thehousing 138 and can be wound to the operator side 53 of the elongatedbody. In other configurations, the device may be self-contained byincorporating a batter within the housing 138. In the configurationshown in FIGS. 14 and 15, the power cord may be coupled to a retractionconfiguration so as to be retractable into the internal portion of thebase.

With reference to FIG. 3, the winch control system 137 provides the userwith the ability to power off and on the device, as well as to actuatethe motor. In the configuration shown, the winch control system 137includes foot switch 172, first handle switch 174, second handle switch176 and directional switch 178. In some configurations, a reset buttonmay also be incorporated for purposes of safety (i.e., when the patientis pulled all the way across a limit switch is triggered and stops thedevice automatically). In the configuration shown, to minimize thepossibility of the operator to be out of position, the operator mustactuate each of the foot switch, the first handle switch, and the secondhandle switch simultaneously to actuate the motor (and the directionalswitch is oriented in a forward or reverse direction, as desired). Sucha configuration insures that the operator is positioned on the operatorside of the frame, and that the operator has engaged both of thehandles. It is contemplated that in some configurations, the controlsmay be incorporated into a wired or wireless controller so that a seconduser (or the single user) can operate the device remotely (as set forthbelow). Additionally, in some configurations, the control system mayinclude a sensor (such as, for example, a tilt sensor or accelerometer,among others) that can sense that the device is tipping over. Forexample, if a condition is sensed, such as tipping over, the system canstop the motor, to minimize the possibility of injury.

In another configuration, another sensor may be provided and associatedwith the control system which would further insure that the device isproperly installed and configured prior to use. For example, the sensorcould be located in the bumper, and the sensor could be triggered (i.e.,depressed or otherwise triggered) when the device is properly positionedwith the bumper pushed against the frame of the bed. Without properpositioning the sensor is not triggered, and, in turn, the motor cannotactivate. In some configurations, multiple sensors may be provided so asto ensure that the device is both properly positioned and also properlyaligned relative to the bed.

In another configuration, such as the configuration shown in FIGS. 14and 15, the handle 57 can have a configuration that provides a largerloop member that extends over the sides of the elongated body at theupper end thereof.

Additionally, it is further contemplated that the winch control systemmay comprise a remote, such as remote 337 can be provided. In theconfiguration shown, the remote can be maintained on the upper end ofthe body and can be removed by the user so that the user can move aroundand assist with the patient moving (for example, at the head or the footof the bed), while controlling the movement of the winch, the windingstrap, and, in turn, the movement of the patient. In variousconfigurations, it is contemplated that the remote may be wireless(tethered or untethered) or may be wired (for example, with a coiledcord or the like).

It will be understood that in some configurations, the system may beadapted to allow for a user to decouple the winch from the transmissionand/or motor to allow a user to pull out the strap and manually unwindthe winch.

Advantageously, the winch assembly, and in particular the housing 138,the drum and the motor are positioned proximate the lower end 50 of theframe proximate the base 20. With the weight of these components, thecenter of gravity of the entire device is proximate the lower end of theelongated body, enhancing stability. Furthermore, by utilizing a winchassembly, the device can pull even large patients with a compact device.Moreover, the winch assembly is positioned away from the operator, thepatient and the patient surface of the bed. Furthermore, adjustment ofthe operable position of the bumper does not require movement of thewinch assembly, rather, the winch assembly remains stationary at thelower end of the elongated body.

With continuing reference to FIG. 6, the winch assembly cooperates withthe winding strap 140 that includes first end 142 associated with thedrum, and a second end 144 opposite thereto. It is contemplated that thestrap comprises a woven ballistic type nylon or the like. In someconfigurations, a polymer encased or coated strap can be utilized, whichenhances durability and resistance to staining, snagging and the like.It is further contemplated that other straps may be utilized, including,for example, cables of varying material and construction as well asdifferent types of ropes. It is further contemplated that the second endof the winding strap may be coupled directly or indirectly to the drum,and that the drum may have a seat belt type mechanism that allows forthe movement of the winding strap without engagement of the motor to,for example, achieve initial positioning of the winding strap and thesheet engaging clamp assembly prior to actuation of the winch assembly,and, movement of the patient. It is further contemplated that multiplestraps may be wound onto the same drum, or side by side drums that mayor may not be matingly engaged. It will be understood that sensors,including but not limited to, limit switches or proximity sensors may beutilized to determine the position of the strap.

In the configuration shown, the path of the strap may extend generallyhorizontally the elongated body (and into the upper rearward extension46) so as to be able to pull the sheet further horizontally whileminimizing any imparting of a downward force on the sheet or the sheetengaging clamp assembly. It will be understood that the winding strapgenerally follows a path (directed, for example by surfaces, axles,and/or pulleys) within the internal channel of the elongated body fromthe upper end to the lower end thereof.

In some configurations, such as the configuration of FIG. 14 the path ofthe strap may further be controlled by slack take-up system 180, whichis configured to preclude the strap (or to minimize) the strap fromgetting tangled inside the device. In one configuration, an idler pulley182 is slidably mounted relative to the slide rail 183 (which maycorrespond to the interfacing coupling for the bumper adjustmentmechanism). A spring, or other biasing member 184 is coupled to theframe (i.e., stationary to the slide rail) at one end and to the idlerpulley at the other end. It will be understood that when there isrelatively low resistance on the strap, the biasing member hassufficient strength to pull the idler pulley downward. When there ishigh resistance, the spring force of the biasing member is overcome andthe idler pulley moves up eventually reaching the end of travel, and thestrap can be pulled out of the device. Once the pulling force stops, thespring and the idler pulley can take up any slack in the system, as thespring pulls the idler pulley, thereby removing slack. The spring maycomprise, for example, a helical spring, or in other configurations maycomprise a constant force spring.

In another configuration, another slack take-up system is contemplated.In such a system, multiple opposing recoil springs may be utilized whichpush the strap out of the device when there is slack. In otherconfigurations, the same may be accomplished through the use of a singlerecoil spring and an idler pulley opposing the single recoil spring.Still other slack take-up systems are contemplated.

The sheet engaging clamp assembly 150 is shown in FIG. 9 as comprisingbase member 152 and locking member 160. A number of differentconfigurations are disclosed for the sheet engaging clamp assembly. Onesuch configuration comprises a base member in the form of an elongatedrod 154 including first side axial valley 156 and second axial valley158. In the configuration shown, the elongated rod comprises asubstantially elongated straight member of a round cross-sectionalconfiguration. In other configurations, such as the configuration shownin FIG. 10, it is contemplated that the shape of the elongated rod maybe altered, to, for example, accommodate and correspond to differentconfigurations and positions of an adjustable patient bed. In otherconfigurations, it is contemplated that the elongated rod may be of ashape that is curved, bent, or otherwise non-linear in one or moredimensions so as to accommodate various different desired orientationsto facilitate patient moving.

The first side axial valley 156 is positioned on the first end of theelongated rod with the second side axial valley 158 positioned on thesecond side of the elongated rod. In the configuration shown, the axialvalleys are mirror images of each other and each comprise a pair ofspherical structures that are positioned relative to each other todefine a valley therebetween. While the structures are shown to besubstantially spherical, other shapes are contemplated, such aspolygonal shapes, disks, among others. In other configurations, it iscontemplated that a single continuous structure at each end of theelongated rod may define the first side and second side axial valleys.In the configuration shown, the two structures comprise spheres that arespaced apart from each other, with the outboard sphere being smallerthan the inboard sphere.

The locking member 160, in such a configuration, comprises a transversestrap 162 having a first end 164 and a second end 166. An adjustablestrap loop 165 is defined at the first end, and a second adjustablestrap loop 167 is defined at the second end. In one configuration thestrap is formed utilizing a substantially uniform woven polymer, thesame as or similar to the winding strap. In the configuration of FIG. 9,the loop is formed with the aid of a metal, or polymer loop ring can beutilized, with the strap slidably movable therethrough to adjust thesize and configuration of the strap loop. In the configuration of FIG. 9b, the strap, at each end, is folded over itself and a small is formedat the end through which the strap extends. As such, the loop at the endcan be adjusted in size by moving the small loop.

In some configurations, the transverse strap may be fixedly coupled tothe second end of the winding strap, or may be unitary therewith. Inother configurations, the transverse strap may itself be releasablyengageable with the winding strap, directly, or through an intermediatestrap or other coupling, such as, for example a carabiner or the like.In other configurations, the transverse strap may further be slidablymovable relative to the winding strap. For example, the second end ofthe winding strap may include a small loop through which the transversestrap is extended. The transverse strap is slidably movable relative tothe second end of the winding strap.

It will be understood that a portion of a sheet can be extended over theends of the elongated rod, so as to extend over the first and secondside axial valleys. Once the sheet is positioned, the first and secondadjustable strap loops can be directed over the ends of the elongatedrod and into the axial valleys. When the strap is pulled, for example,by the winch assembly, the strap loops adjust in size and theessentially clamp the sheet between the strap loop and the first andsecond side axial valleys precluding separation of the sheet from thesheet engaging clamp assembly.

When not in use, the sheet engaging clamp assembly may be releasablyattached to the frame. In the configuration shown, a pair of clasps,such as clasp 48, are disposed on the bed side of the elongated body.The clasps correspond to the configuration of the elongated rod, and theclasps can releasably retain the elongated rod when not in use. In theconfiguration shown in FIGS. 14 and 15, the clasps 48 may be positionedon the side of the elongated body and the base, so as to be offset andto one of the sides of the frame. Additionally, the clasps areconfigured so as to dispose the sheet engaging clamp assembly in aninclined orientation.

It will be understood that other configurations are contemplated. Forexample, in some configurations, multiple sheet engaging clampassemblies may be utilized. With other configurations, a pair of basemembers 152 each having one or more corresponding locking member 160 maybe utilized.

A number of different sheet engaging clamp assemblies are contemplatedfor use, and use is not limited to the sheet engaging clamp assemblyshown herein. For example, and as is shown in FIGS. 11 and 12, anotherconfiguration is shown. In such a configuration, the base member 252comprises an elongated channel 254 (in the configuration shown, aU-channel) and a mating bar 257 positionable within the elongatedchannel 254. The elongated channel may be lined with an elastic pad sothat the elastic is preferably elastically deformed upon insertion ofthe mating bar 257. The elongated channel includes a coupling forattachment to the second end of the winding strap directly or throughother straps and/or couplings.

In such a configuration, the locking member 260 comprises a first leverlock 265 at one end of the elongated channel and a second lever lock 266positioned at the second end of the elongated channel. The first andsecond lever locks force the mating bar into the elongated channel, soas to capture a sheet therebetween. The elastic pad minimizes damage tothe sheet while enhancing the retention of the sheet within the basemember.

In operation, and with reference to FIG. 13, to transfer a patient froma first bed surface to a second bed surface, the two bed surfaces arefirst positioned in a side by side orientation. Once the beds arepositioned as desired, the patient slider device is placed adjacent aside of the second bed surface opposite the first bed surface.Generally, it is desirable to have the position of the patient sliderdevice correspond to the center of mass of the patient.

In the configuration shown, the patient slider device is tilted androlled to the desired position on the roller 36 by pushing or pullingthe device while holding onto the handle 46, for example. Once placed asdesired, the patient slider device is slowly released so that the weighttransfers from the roller to the ground supports. With the winchassembly, and in turn, the majority of the weight of the device beingproximate the lower end of the elongated body, the device resiststipping forward, rearward or side to side.

Prior to final positioning, the user may adjust the position of thebumper 70 of the bed engagement assembly, so that the bumper abuts theframe of the second bed. In particular, the user unlocks any lockingassembly that may preclude movement of the bumper relative to the frame.Next, the user slidably moves the bumper together with the supportmembers through the adjustment mechanism, in a generally up and downvertical orientation. This adjustment is continued until the userdetermines that the bumper is positioned in the desired orientationrelative to the second bed. At such time, the locking assembly can beutilized to preclude further movement of the bumper relative to theframe. It will be understood that positioning of the bumper in thedesired orientation may include movement of the bumper as well asmovement and adjustment of the second bed (and, possibly, the firstbed).

Once the bumper is positioned as desired, the sheet engaging clampassembly is coupled to the bed sheet that underlies the patient. It isdesirable to have the base member to essentially be substantiallycentered, where possible, relative to the mass of the patient. Thesecond end of the winding strap is extended, often together with thesheet engaging clamp assembly 150 over the first bed surface so as toengage the sheet of the second bed surface which underlies the patient.In some configurations, it may be necessary to separate the two beds andto have access to the sheet underlying the patient (if, for example, theoperator cannot reach across the first bed or between the two beds).

Once the sheet is clamped, the user can return to the patient sliderdevice so as to actuate the same. In particular, with the configurationof the winch control system, the operator simultaneously actuates thefoot switch 172, the first handle switch 174 and the second handleswitch 176 (which insures that the operator is in the proper position).When actuated, the winch begins to reel the winding strap pulling thesecond end toward the frame. The patient slider device is maintained inthe desired position by interaction of the bumper with the second bed.Eventually, the winding strap exerts a pulling force on the sheetengaging clamp assembly. In the first configuration shown, the pullingforce will decrease the size of the adjustable strap loops of thetransverse strap, thereby enhancing the clamping force on the sheetbetween the locking member and the base member.

Eventually, movement of the winding strap pulls the sheet (with thepatient) from the first bed to the second bed. Once the patient is inthe desired position on the second bed surface, the user can release anyone of the switches to stop retraction of the winding strap. The usercan then decouple the sheet from the sheet engaging clamp assembly. Thepatient slider device can be rolled away from the second bed by way ofthe roller. Depending on the configuration, the device may be coupled toa wall mount when not in use, coupled to a patient bed when not in use,or positioned on the ground support in a desired storage location.

The foregoing description merely explains and illustrates the disclosureand the disclosure is not limited thereto except insofar as the appendedclaims are so limited, as those skilled in the art who have thedisclosure before them will be able to make modifications withoutdeparting from the scope of the disclosure.

What is claimed is:
 1. A patient slider device comprising: a framehaving a base and an elongated body extending from the base, theelongated body having a lower end and an upper end; a bed engagementassembly structurally configured to engage a bed, to, in turn, maintainthe frame in an operable position; and a patient pulling assemblyincluding a winch assembly and a sheet engaging clamp assembly, with awinding strap extending between the winch assembly and the sheet clampassembly, and movable relative to the frame by the winch assembly. 2.The patient slider device of claim 1 wherein the winch assembly includesa drum and a motor positioned within a housing, the housing positionedproximate the lower end of the elongated body.
 3. The patient sliderdevice of claim 1 wherein the winding strap exits the frame proximatethe upper end thereof.
 4. The patient slider device of claim 2 whereinthe winch assembly further includes a slack take-up system within theelongated body of the frame.
 5. The patient slider device of claim 4wherein the slack take-up system includes an idler pulley and a springcoupled to the idler pulley and to the frame, with the idler pulleyconfigured to travel between the lower end and the upper end of theelongated body of the frame.
 6. The patient slider device of claim 5wherein the spring comprises one of a helical spring and a constantforce spring.
 7. The patient slider device of claim 1 wherein a bedengagement assembly further includes a bumper and an adjustmentmechanism, the adjustment mechanism structurally configured to adjustthe position of the bumper between the lower end and the upper end ofthe frame.
 8. The patient slider device of claim 7 wherein the bumper isslidably movable along the frame between the lower end and the upper endof the frame.
 9. The patient slider device of claim 8 wherein theadjustment mechanism includes: a first side vertical adjustment having afirst interfacing coupling coupled to the frame and a first matingcoupling slidably movable along the first interfacing coupling; a secondside vertical adjustment having a second interfacing coupling coupled tothe frame and a second mating coupling slidably movable along the secondinterfacing coupling; and a support member having a first side armcoupled to the bumper and to the first mating coupling, and a secondside arm coupled to the bumper and the second mating coupling.
 10. Thepatient slider device of claim 9 wherein frame has a first side and asecond side opposite the first side, and with a bed side extendingtherebetween, the first side vertical adjustment extending along thefirst side between the lower end and the upper end of the frame, thesecond side vertical adjustment extending along the second side betweenthe lower end and the upper end of the frame, with the bumper extendingtherebetween and across the bed side, while being spaced apart from thebed side.
 11. The patient slider device of claim 8 wherein theadjustment mechanism further includes a locking assembly structurallyconfigured to lock the position of the bumper relative to the framebetween the lower end and the upper end of the frame.
 12. The patientslider device of claim 1 wherein the patient pulling assembly furtherincludes a winch control system structurally configured to retract thewinding strap toward the frame.
 13. The patient slider device of claim12 wherein the winch control system includes a remote movable away fromthe frame.
 14. The patient slider device of claim 1 further comprising asheet engaging clamp assembly, the sheet engaging clamp assemblyincluding: a base member; and a locking member coupled to the windingstrap and to the base member, wherein a sheet is releasably clampablebetween the base member and the locking member.
 15. The patient sliderdevice of claim 14 wherein: the base member comprises an elongated rodhaving a first side axial valley at one end thereof, and a second sideaxial valley at the other end thereof; the locking member comprising atransverse strap having a first adjustable strap loop and a secondadjustable strap loop, wherein the first adjustable strap loop ispositionable over the first side axial valley to clamp a sheettherebetween, and the second adjustable strap loop is positionable overthe second side axial valley to clamp the sheet therebetween.
 16. Thepatient slider device of claim 15 wherein the locking member is one offixedly coupled to the winding strap and releasably coupled to thewinding strap.
 17. The patient slider device of claim 15 wherein thefirst side axial valley and the second side axial valley are each formedby a pair of spheres spaced apart from each other.
 18. A sheet engagingclamp assembly comprising: a base member having an elongated rod havinga first side axial valley at one end thereof, and a second side axialvalley at the other end thereof; and a locking member, the lockingmember having a transverse strap having a first adjustable strap loopand a second adjustable strap loop, wherein the first adjustable straploop is positionable over the first side axial valley to clamp a sheettherebetween, and the second adjustable strap loop is positionable overthe second side axial valley to clamp the sheet therebetween.
 19. Amethod of sliding a patient from a first surface to a second surfaceadjacent to the first surface, with a patient positioned on a sheetcovering the first surface, using the patient slider device of claim 1comprising the steps of: providing a sheet engaging clamp; clamping asheet upon which a patient is positioned to the sheet engaging clamp;positioning the patient slider device adjacent the second surfaceopposite from the first surface; extending the winding strap from theframe; coupling the sheet engaging clamp to the winding strap;retracting the winding strap with the winch assembly; pulling the sheettoward the frame, to, in turn, slide a patient to the second surface.20. The method of claim 19 wherein the patient slider device furtherincludes a winch control system that comprises a remote that controlsthe winch assembly, the method further comprising the step of: movingthe remote away from the frame of the patient slider device prior to thestep of retracting the winding strap with the winch assembly.